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How to set auto increment primary key in PostgreSQL?
I have a table in PostgreSQL with 22 columns, and I want to add an auto increment primary key.
7 Answers
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Removing duplicates in lists
...ove, sets themselves are unordered collections, so the order is lost. When converting a set back to a list, an arbitrary order is created.
Maintaining order
If order is important to you, then you will have to use a different mechanism. A very common solution for this is to rely on OrderedDict to k...
What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?
...s how unqualified names are looked up by the compiler in C++.
The C++11 standard § 3.4.2/1 states:
When the postfix-expression in a function call (5.2.2) is an unqualified-id, other namespaces not considered during the usual unqualified lookup (3.4.1) may be searched, and in those namespaces, ...
How to repeat a string a variable number of times in C++?
... @Brent The OP asked for both - "'n' spaces (or any string)", and then goes on to demonstrate their intent with a single period as the string. English is not many people's first language so you sometimes need to guess their exact requirements and when analysed, the question is really as...
What does the “__block” keyword mean?
...eated in a special way when it is used inside a block. Normally, variables and their contents that are also used in blocks are copied, thus any modification done to these variables don't show outside the block. When they are marked with __block, the modifications done inside the block are also visib...
SELECT INTO a table variable in T-SQL
...' to go into the UserData 'name' variable but you are selecting 'location' and somehow assigning it to the UserData 'oldlocation' variable. Will SQL just map these automatically or will it throw some kind of exception?
– Aran Mulholland
Nov 17 '15 at 7:23
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Setting default values for columns in JPA
Is it possible to set a default value for columns in JPA, and if, how is it done using annotations?
18 Answers
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Show current state of Jenkins build on GitHub repo
...s appear when going to Advance-> Manage Additional Github Actions -> Convert Login and Password to Github token.
– shehzan
Jan 19 '16 at 16:22
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Partly cherry-picking a commit with Git
...ne by bringing in git stash:
Do the full cherry pick.
git reset HEAD^ to convert the entire cherry-picked commit into unstaged working changes.
Now git stash save --patch: interactively select unwanted material to stash.
Git rolls back the stashed changes from your working copy.
git commit
Throw a...
mailto link with HTML body
...raw("text \n more text \n\n\t") function to encapsulate text and have this converted to line breaks and tabs for the email body
– FireDragon
Sep 5 '13 at 20:38
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